package com.xiaozhichao.nosql;

/**
 * @author:xiaozhichao
 * @date:2019/1/12
 */
public class Main {

    public static void main(String[] args) {
        //[-128,127]
        Integer a = -129;
        Integer b = -129;
        System.out.println(a==b);
        System.out.println(a!=b);
        System.out.println(a.equals(b));
    }
}
